BEREA, Ohio (AP) The Browns lost their new man in the middle. Starting center Nick Harris was officially placed on injured reserve Tuesday and will miss the season with a knee injury suffered on the second snap of Cleveland's exhibition opener last week in Jacksonville. Harris, who was slotted to replace JC Tretter after the Browns released the reliable veteran center after five seasons, got hurt while dropping back to protect quarterback Deshaun Watson when his knee gave out and he crumpled to the grass.